1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Michael Fischbein. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef lint 36 static const char copyright[] = 37 "@(#) Copyright (c) 1989, 1993, 1994\n\ 38 The Regents of the University of California. All rights reserved.\n"; 39 #endif /* not lint */ 40 41 #if 0 42 #ifndef lint 43 static char sccsid[] = "@(#)ls.c 8.5 (Berkeley) 4/2/94"; 44 #endif /* not lint */ 45 #endif 46 #include <sys/cdefs.h> 47 __FBSDID("$FreeBSD$"); 48 49 #include <sys/param.h> 50 #include <sys/stat.h> 51 #include <sys/ioctl.h> 52 #include <sys/mac.h> 53 54 #include <ctype.h> 55 #include <dirent.h> 56 #include <err.h> 57 #include <errno.h> 58 #include <fts.h> 59 #include <getopt.h> 60 #include <grp.h> 61 #include <inttypes.h> 62 #include <limits.h> 63 #include <locale.h> 64 #include <pwd.h> 65 #include <stdbool.h> 66 #include <stdio.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <unistd.h> 70 #ifdef COLORLS 71 #include <termcap.h> 72 #include <signal.h> 73 #endif 74 75 #include "ls.h" 76 #include "extern.h" 77 78 /* 79 * Upward approximation of the maximum number of characters needed to 80 * represent a value of integral type t as a string, excluding the 81 * NUL terminator, with provision for a sign. 82 */ 83 #define STRBUF_SIZEOF(t) (1 + CHAR_BIT * sizeof(t) / 3 + 1) 84 85 /* 86 * MAKENINES(n) turns n into (10**n)-1. This is useful for converting a width 87 * into a number that wide in decimal. 88 * XXX: Overflows are not considered. 89 */ 90 #define MAKENINES(n) \ 91 do { \ 92 intmax_t __i; \ 93 \ 94 /* Use a loop as all values of n are small. */ \ 95 for (__i = 1; n > 0; __i *= 10) \ 96 n--; \ 97 n = __i - 1; \ 98 } while(0) 99 100 static void display(const FTSENT *, FTSENT *, int); 101 static int mastercmp(const FTSENT * const *, const FTSENT * const *); 102 static void traverse(int, char **, int); 103 104 #define COLOR_OPT (CHAR_MAX + 1) 105 106 static const struct option long_opts[] = 107 { 108 {"color", optional_argument, NULL, COLOR_OPT}, 109 {NULL, no_argument, NULL, 0} 110 }; 111 112 static void (*printfcn)(const DISPLAY *); 113 static int (*sortfcn)(const FTSENT *, const FTSENT *); 114 115 long blocksize; /* block size units */ 116 int termwidth = 80; /* default terminal width */ 117 118 /* flags */ 119 int f_accesstime; /* use time of last access */ 120 int f_birthtime; /* use time of birth */ 121 int f_flags; /* show flags associated with a file */ 122 int f_humanval; /* show human-readable file sizes */ 123 int f_inode; /* print inode */ 124 static int f_kblocks; /* print size in kilobytes */ 125 int f_label; /* show MAC label */ 126 static int f_listdir; /* list actual directory, not contents */ 127 static int f_listdot; /* list files beginning with . */ 128 int f_longform; /* long listing format */ 129 static int f_noautodot; /* do not automatically enable -A for root */ 130 static int f_nofollow; /* don't follow symbolic link arguments */ 131 int f_nonprint; /* show unprintables as ? */ 132 static int f_nosort; /* don't sort output */ 133 int f_notabs; /* don't use tab-separated multi-col output */ 134 static int f_numericonly; /* don't convert uid/gid to name */ 135 int f_octal; /* show unprintables as \xxx */ 136 int f_octal_escape; /* like f_octal but use C escapes if possible */ 137 static int f_recursive; /* ls subdirectories also */ 138 static int f_reversesort; /* reverse whatever sort is used */ 139 int f_samesort; /* sort time and name in same direction */ 140 int f_sectime; /* print full time information */ 141 static int f_singlecol; /* use single column output */ 142 int f_size; /* list size in short listing */ 143 static int f_sizesort; 144 int f_slash; /* similar to f_type, but only for dirs */ 145 int f_sortacross; /* sort across rows, not down columns */ 146 int f_statustime; /* use time of last mode change */ 147 static int f_stream; /* stream the output, separate with commas */ 148 int f_thousands; /* show file sizes with thousands separators */ 149 char *f_timeformat; /* user-specified time format */ 150 static int f_timesort; /* sort by time vice name */ 151 int f_type; /* add type character for non-regular files */ 152 static int f_whiteout; /* show whiteout entries */ 153 #ifdef COLORLS 154 int colorflag = COLORFLAG_NEVER; /* passed in colorflag */ 155 int f_color; /* add type in color for non-regular files */ 156 bool explicitansi; /* Explicit ANSI sequences, no termcap(5) */ 157 char *ansi_bgcol; /* ANSI sequence to set background colour */ 158 char *ansi_fgcol; /* ANSI sequence to set foreground colour */ 159 char *ansi_coloff; /* ANSI sequence to reset colours */ 160 char *attrs_off; /* ANSI sequence to turn off attributes */ 161 char *enter_bold; /* ANSI sequence to set color to bold mode */ 162 char *enter_underline; /* ANSI sequence to enter underline mode */ 163 #endif 164 165 static int rval; 166 167 static bool 168 do_color_from_env(void) 169 { 170 const char *p; 171 bool doit; 172 173 doit = false; 174 p = getenv("CLICOLOR"); 175 if (p == NULL) { 176 /* 177 * COLORTERM is the more standard name for this variable. We'll 178 * honor it as long as it's both set and not empty. 179 */ 180 p = getenv("COLORTERM"); 181 if (p != NULL && *p != '\0') 182 doit = true; 183 } else 184 doit = true; 185 186 return (doit && 187 (isatty(STDOUT_FILENO) || getenv("CLICOLOR_FORCE"))); 188 } 189 190 static bool 191 do_color(void) 192 { 193 194 #ifdef COLORLS 195 if (colorflag == COLORFLAG_NEVER) 196 return (false); 197 else if (colorflag == COLORFLAG_ALWAYS) 198 return (true); 199 #endif 200 return (do_color_from_env()); 201 } 202 203 #ifdef COLORLS 204 static bool 205 do_color_always(const char *term) 206 { 207 208 return (strcmp(term, "always") == 0 || strcmp(term, "yes") == 0 || 209 strcmp(term, "force") == 0); 210 } 211 212 static bool 213 do_color_never(const char *term) 214 { 215 216 return (strcmp(term, "never") == 0 || strcmp(term, "no") == 0 || 217 strcmp(term, "none") == 0); 218 } 219 220 static bool 221 do_color_auto(const char *term) 222 { 223 224 return (strcmp(term, "auto") == 0 || strcmp(term, "tty") == 0 || 225 strcmp(term, "if-tty") == 0); 226 } 227 #endif /* COLORLS */ 228 229 int 230 main(int argc, char *argv[]) 231 { 232 static char dot[] = ".", *dotav[] = {dot, NULL}; 233 struct winsize win; 234 int ch, fts_options, notused; 235 char *p; 236 const char *errstr = NULL; 237 #ifdef COLORLS 238 char termcapbuf[1024]; /* termcap definition buffer */ 239 char tcapbuf[512]; /* capability buffer */ 240 char *bp = tcapbuf, *term; 241 #endif 242 243 (void)setlocale(LC_ALL, ""); 244 245 /* Terminal defaults to -Cq, non-terminal defaults to -1. */ 246 if (isatty(STDOUT_FILENO)) { 247 termwidth = 80; 248 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 249 termwidth = strtonum(p, 0, INT_MAX, &errstr); 250 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) != -1 && 251 win.ws_col > 0) 252 termwidth = win.ws_col; 253 f_nonprint = 1; 254 } else { 255 f_singlecol = 1; 256 /* retrieve environment variable, in case of explicit -C */ 257 p = getenv("COLUMNS"); 258 if (p) 259 termwidth = strtonum(p, 0, INT_MAX, &errstr); 260 } 261 262 if (errstr) 263 termwidth = 80; 264 265 fts_options = FTS_PHYSICAL; 266 if (getenv("LS_SAMESORT")) 267 f_samesort = 1; 268 269 /* 270 * For historical compatibility, we'll use our autodetection if CLICOLOR 271 * is set. 272 */ 273 #ifdef COLORLS 274 if (getenv("CLICOLOR")) 275 colorflag = COLORFLAG_AUTO; 276 #endif 277 while ((ch = getopt_long(argc, argv, 278 "+1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuwxy,", long_opts, 279 NULL)) != -1) { 280 switch (ch) { 281 /* 282 * The -1, -C, -x and -l options all override each other so 283 * shell aliasing works right. 284 */ 285 case '1': 286 f_singlecol = 1; 287 f_longform = 0; 288 f_stream = 0; 289 break; 290 case 'C': 291 f_sortacross = f_longform = f_singlecol = 0; 292 break; 293 case 'l': 294 f_longform = 1; 295 f_singlecol = 0; 296 f_stream = 0; 297 break; 298 case 'x': 299 f_sortacross = 1; 300 f_longform = 0; 301 f_singlecol = 0; 302 break; 303 /* The -c, -u, and -U options override each other. */ 304 case 'c': 305 f_statustime = 1; 306 f_accesstime = 0; 307 f_birthtime = 0; 308 break; 309 case 'u': 310 f_accesstime = 1; 311 f_statustime = 0; 312 f_birthtime = 0; 313 break; 314 case 'U': 315 f_birthtime = 1; 316 f_accesstime = 0; 317 f_statustime = 0; 318 break; 319 case 'f': 320 f_nosort = 1; 321 /* FALLTHROUGH */ 322 case 'a': 323 fts_options |= FTS_SEEDOT; 324 /* FALLTHROUGH */ 325 case 'A': 326 f_listdot = 1; 327 break; 328 /* The -t and -S options override each other. */ 329 case 'S': 330 f_sizesort = 1; 331 f_timesort = 0; 332 break; 333 case 't': 334 f_timesort = 1; 335 f_sizesort = 0; 336 break; 337 /* Other flags. Please keep alphabetic. */ 338 case ',': 339 f_thousands = 1; 340 break; 341 case 'B': 342 f_nonprint = 0; 343 f_octal = 1; 344 f_octal_escape = 0; 345 break; 346 case 'D': 347 f_timeformat = optarg; 348 break; 349 case 'F': 350 f_type = 1; 351 f_slash = 0; 352 break; 353 case 'G': 354 /* 355 * We both set CLICOLOR here and set colorflag to 356 * COLORFLAG_AUTO, because -G should not force color if 357 * stdout isn't a tty. 358 */ 359 setenv("CLICOLOR", "", 1); 360 #ifdef COLORLS 361 colorflag = COLORFLAG_AUTO; 362 #endif 363 break; 364 case 'H': 365 fts_options |= FTS_COMFOLLOW; 366 f_nofollow = 0; 367 break; 368 case 'I': 369 f_noautodot = 1; 370 break; 371 case 'L': 372 fts_options &= ~FTS_PHYSICAL; 373 fts_options |= FTS_LOGICAL; 374 f_nofollow = 0; 375 break; 376 case 'P': 377 fts_options &= ~FTS_COMFOLLOW; 378 fts_options &= ~FTS_LOGICAL; 379 fts_options |= FTS_PHYSICAL; 380 f_nofollow = 1; 381 break; 382 case 'R': 383 f_recursive = 1; 384 break; 385 case 'T': 386 f_sectime = 1; 387 break; 388 case 'W': 389 f_whiteout = 1; 390 break; 391 case 'Z': 392 f_label = 1; 393 break; 394 case 'b': 395 f_nonprint = 0; 396 f_octal = 0; 397 f_octal_escape = 1; 398 break; 399 /* The -d option turns off the -R option. */ 400 case 'd': 401 f_listdir = 1; 402 f_recursive = 0; 403 break; 404 case 'g': /* Compatibility with 4.3BSD. */ 405 break; 406 case 'h': 407 f_humanval = 1; 408 break; 409 case 'i': 410 f_inode = 1; 411 break; 412 case 'k': 413 f_humanval = 0; 414 f_kblocks = 1; 415 break; 416 case 'm': 417 f_stream = 1; 418 f_singlecol = 0; 419 f_longform = 0; 420 break; 421 case 'n': 422 f_numericonly = 1; 423 break; 424 case 'o': 425 f_flags = 1; 426 break; 427 case 'p': 428 f_slash = 1; 429 f_type = 1; 430 break; 431 case 'q': 432 f_nonprint = 1; 433 f_octal = 0; 434 f_octal_escape = 0; 435 break; 436 case 'r': 437 f_reversesort = 1; 438 break; 439 case 's': 440 f_size = 1; 441 break; 442 case 'w': 443 f_nonprint = 0; 444 f_octal = 0; 445 f_octal_escape = 0; 446 break; 447 case 'y': 448 f_samesort = 1; 449 break; 450 case COLOR_OPT: 451 #ifdef COLORLS 452 if (optarg == NULL || do_color_always(optarg)) 453 colorflag = COLORFLAG_ALWAYS; 454 else if (do_color_auto(optarg)) 455 colorflag = COLORFLAG_AUTO; 456 else if (do_color_never(optarg)) 457 colorflag = COLORFLAG_NEVER; 458 else 459 errx(2, "unsupported --color value '%s' (must be always, auto, or never)", 460 optarg); 461 break; 462 #else 463 warnx("color support not compiled in"); 464 #endif 465 default: 466 case '?': 467 usage(); 468 } 469 } 470 argc -= optind; 471 argv += optind; 472 473 /* Root is -A automatically unless -I. */ 474 if (!f_listdot && getuid() == (uid_t)0 && !f_noautodot) 475 f_listdot = 1; 476 477 /* 478 * Enabling of colours is conditional on the environment in conjunction 479 * with the --color and -G arguments, if supplied. 480 */ 481 if (do_color()) { 482 #ifdef COLORLS 483 if ((term = getenv("TERM")) != NULL && 484 tgetent(termcapbuf, term) == 1) { 485 ansi_fgcol = tgetstr("AF", &bp); 486 ansi_bgcol = tgetstr("AB", &bp); 487 attrs_off = tgetstr("me", &bp); 488 enter_bold = tgetstr("md", &bp); 489 enter_underline = tgetstr("us", &bp); 490 491 /* To switch colours off use 'op' if 492 * available, otherwise use 'oc', or 493 * don't do colours at all. */ 494 ansi_coloff = tgetstr("op", &bp); 495 if (!ansi_coloff) 496 ansi_coloff = tgetstr("oc", &bp); 497 if (ansi_fgcol && ansi_bgcol && ansi_coloff) 498 f_color = 1; 499 } else if (colorflag == COLORFLAG_ALWAYS) { 500 /* 501 * If we're *always* doing color but we don't have 502 * a functional TERM supplied, we'll fallback to 503 * outputting raw ANSI sequences. 504 */ 505 f_color = 1; 506 explicitansi = true; 507 } 508 #endif /*COLORLS*/ 509 } 510 511 #ifdef COLORLS 512 if (f_color) { 513 /* 514 * We can't put tabs and color sequences together: 515 * column number will be incremented incorrectly 516 * for "stty oxtabs" mode. 517 */ 518 f_notabs = 1; 519 (void)signal(SIGINT, colorquit); 520 (void)signal(SIGQUIT, colorquit); 521 parsecolors(getenv("LSCOLORS")); 522 } 523 #endif 524 525 /* 526 * If not -F, -i, -l, -s, -S or -t options, don't require stat 527 * information, unless in color mode in which case we do 528 * need this to determine which colors to display. 529 */ 530 if (!f_inode && !f_longform && !f_size && !f_timesort && 531 !f_sizesort && !f_type 532 #ifdef COLORLS 533 && !f_color 534 #endif 535 ) 536 fts_options |= FTS_NOSTAT; 537 538 /* 539 * If not -F, -P, -d or -l options, follow any symbolic links listed on 540 * the command line, unless in color mode in which case we need to 541 * distinguish file type for a symbolic link itself and its target. 542 */ 543 if (!f_nofollow && !f_longform && !f_listdir && (!f_type || f_slash) 544 #ifdef COLORLS 545 && !f_color 546 #endif 547 ) 548 fts_options |= FTS_COMFOLLOW; 549 550 /* 551 * If -W, show whiteout entries 552 */ 553 #ifdef FTS_WHITEOUT 554 if (f_whiteout) 555 fts_options |= FTS_WHITEOUT; 556 #endif 557 558 /* If -i, -l or -s, figure out block size. */ 559 if (f_inode || f_longform || f_size) { 560 if (f_kblocks) 561 blocksize = 2; 562 else { 563 (void)getbsize(¬used, &blocksize); 564 blocksize /= 512; 565 } 566 } 567 /* Select a sort function. */ 568 if (f_reversesort) { 569 if (!f_timesort && !f_sizesort) 570 sortfcn = revnamecmp; 571 else if (f_sizesort) 572 sortfcn = revsizecmp; 573 else if (f_accesstime) 574 sortfcn = revacccmp; 575 else if (f_birthtime) 576 sortfcn = revbirthcmp; 577 else if (f_statustime) 578 sortfcn = revstatcmp; 579 else /* Use modification time. */ 580 sortfcn = revmodcmp; 581 } else { 582 if (!f_timesort && !f_sizesort) 583 sortfcn = namecmp; 584 else if (f_sizesort) 585 sortfcn = sizecmp; 586 else if (f_accesstime) 587 sortfcn = acccmp; 588 else if (f_birthtime) 589 sortfcn = birthcmp; 590 else if (f_statustime) 591 sortfcn = statcmp; 592 else /* Use modification time. */ 593 sortfcn = modcmp; 594 } 595 596 /* Select a print function. */ 597 if (f_singlecol) 598 printfcn = printscol; 599 else if (f_longform) 600 printfcn = printlong; 601 else if (f_stream) 602 printfcn = printstream; 603 else 604 printfcn = printcol; 605 606 if (argc) 607 traverse(argc, argv, fts_options); 608 else 609 traverse(1, dotav, fts_options); 610 exit(rval); 611 } 612 613 static int output; /* If anything output. */ 614 615 /* 616 * Traverse() walks the logical directory structure specified by the argv list 617 * in the order specified by the mastercmp() comparison function. During the 618 * traversal it passes linked lists of structures to display() which represent 619 * a superset (may be exact set) of the files to be displayed. 620 */ 621 static void 622 traverse(int argc, char *argv[], int options) 623 { 624 FTS *ftsp; 625 FTSENT *p, *chp; 626 int ch_options; 627 628 if ((ftsp = 629 fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL) 630 err(1, "fts_open"); 631 632 /* 633 * We ignore errors from fts_children here since they will be 634 * replicated and signalled on the next call to fts_read() below. 635 */ 636 chp = fts_children(ftsp, 0); 637 if (chp != NULL) 638 display(NULL, chp, options); 639 if (f_listdir) 640 return; 641 642 /* 643 * If not recursing down this tree and don't need stat info, just get 644 * the names. 645 */ 646 ch_options = !f_recursive && !f_label && 647 options & FTS_NOSTAT ? FTS_NAMEONLY : 0; 648 649 while (errno = 0, (p = fts_read(ftsp)) != NULL) 650 switch (p->fts_info) { 651 case FTS_DC: 652 warnx("%s: directory causes a cycle", p->fts_name); 653 break; 654 case FTS_DNR: 655 case FTS_ERR: 656 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 657 rval = 1; 658 break; 659 case FTS_D: 660 if (p->fts_level != FTS_ROOTLEVEL && 661 p->fts_name[0] == '.' && !f_listdot) 662 break; 663 664 /* 665 * If already output something, put out a newline as 666 * a separator. If multiple arguments, precede each 667 * directory with its name. 668 */ 669 if (output) { 670 putchar('\n'); 671 (void)printname(p->fts_path); 672 puts(":"); 673 } else if (argc > 1) { 674 (void)printname(p->fts_path); 675 puts(":"); 676 output = 1; 677 } 678 chp = fts_children(ftsp, ch_options); 679 display(p, chp, options); 680 681 if (!f_recursive && chp != NULL) 682 (void)fts_set(ftsp, p, FTS_SKIP); 683 break; 684 default: 685 break; 686 } 687 if (errno) 688 err(1, "fts_read"); 689 } 690 691 /* 692 * Display() takes a linked list of FTSENT structures and passes the list 693 * along with any other necessary information to the print function. P 694 * points to the parent directory of the display list. 695 */ 696 static void 697 display(const FTSENT *p, FTSENT *list, int options) 698 { 699 struct stat *sp; 700 DISPLAY d; 701 FTSENT *cur; 702 NAMES *np; 703 off_t maxsize; 704 long maxblock; 705 uintmax_t maxinode; 706 u_long btotal, labelstrlen, maxlen, maxnlink; 707 u_long maxlabelstr; 708 u_int sizelen; 709 int maxflags; 710 gid_t maxgroup; 711 uid_t maxuser; 712 size_t flen, ulen, glen; 713 char *initmax; 714 int entries, needstats; 715 const char *user, *group; 716 char *flags, *labelstr = NULL; 717 char ngroup[STRBUF_SIZEOF(uid_t) + 1]; 718 char nuser[STRBUF_SIZEOF(gid_t) + 1]; 719 u_long width[9]; 720 int i; 721 722 needstats = f_inode || f_longform || f_size; 723 flen = 0; 724 btotal = 0; 725 726 #define LS_COLWIDTHS_FIELDS 9 727 initmax = getenv("LS_COLWIDTHS"); 728 729 for (i = 0 ; i < LS_COLWIDTHS_FIELDS; i++) 730 width[i] = 0; 731 732 if (initmax != NULL) { 733 char *endp; 734 735 for (i = 0; i < LS_COLWIDTHS_FIELDS && *initmax != '\0'; i++) { 736 if (*initmax == ':') { 737 width[i] = 0; 738 } else { 739 width[i] = strtoul(initmax, &endp, 10); 740 initmax = endp; 741 while (isspace(*initmax)) 742 initmax++; 743 if (*initmax != ':') 744 break; 745 initmax++; 746 } 747 } 748 if (i < LS_COLWIDTHS_FIELDS) 749 #ifdef COLORLS 750 if (!f_color) 751 #endif 752 f_notabs = 0; 753 } 754 755 /* Fields match -lios order. New ones should be added at the end. */ 756 maxinode = width[0]; 757 maxblock = width[1]; 758 maxnlink = width[2]; 759 maxuser = width[3]; 760 maxgroup = width[4]; 761 maxflags = width[5]; 762 maxsize = width[6]; 763 maxlen = width[7]; 764 maxlabelstr = width[8]; 765 766 MAKENINES(maxinode); 767 MAKENINES(maxblock); 768 MAKENINES(maxnlink); 769 MAKENINES(maxsize); 770 771 d.s_size = 0; 772 sizelen = 0; 773 flags = NULL; 774 for (cur = list, entries = 0; cur; cur = cur->fts_link) { 775 if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) { 776 warnx("%s: %s", 777 cur->fts_name, strerror(cur->fts_errno)); 778 cur->fts_number = NO_PRINT; 779 rval = 1; 780 continue; 781 } 782 /* 783 * P is NULL if list is the argv list, to which different rules 784 * apply. 785 */ 786 if (p == NULL) { 787 /* Directories will be displayed later. */ 788 if (cur->fts_info == FTS_D && !f_listdir) { 789 cur->fts_number = NO_PRINT; 790 continue; 791 } 792 } else { 793 /* Only display dot file if -a/-A set. */ 794 if (cur->fts_name[0] == '.' && !f_listdot) { 795 cur->fts_number = NO_PRINT; 796 continue; 797 } 798 } 799 if (cur->fts_namelen > maxlen) 800 maxlen = cur->fts_namelen; 801 if (f_octal || f_octal_escape) { 802 u_long t = len_octal(cur->fts_name, cur->fts_namelen); 803 804 if (t > maxlen) 805 maxlen = t; 806 } 807 if (needstats) { 808 sp = cur->fts_statp; 809 if (sp->st_blocks > maxblock) 810 maxblock = sp->st_blocks; 811 if (sp->st_ino > maxinode) 812 maxinode = sp->st_ino; 813 if (sp->st_nlink > maxnlink) 814 maxnlink = sp->st_nlink; 815 if (sp->st_size > maxsize) 816 maxsize = sp->st_size; 817 818 btotal += sp->st_blocks; 819 if (f_longform) { 820 if (f_numericonly) { 821 (void)snprintf(nuser, sizeof(nuser), 822 "%u", sp->st_uid); 823 (void)snprintf(ngroup, sizeof(ngroup), 824 "%u", sp->st_gid); 825 user = nuser; 826 group = ngroup; 827 } else { 828 user = user_from_uid(sp->st_uid, 0); 829 /* 830 * user_from_uid(..., 0) only returns 831 * NULL in OOM conditions. We could 832 * format the uid here, but (1) in 833 * general ls(1) exits on OOM, and (2) 834 * there is another allocation/exit 835 * path directly below, which will 836 * likely exit anyway. 837 */ 838 if (user == NULL) 839 err(1, "user_from_uid"); 840 group = group_from_gid(sp->st_gid, 0); 841 /* Ditto. */ 842 if (group == NULL) 843 err(1, "group_from_gid"); 844 } 845 if ((ulen = strlen(user)) > maxuser) 846 maxuser = ulen; 847 if ((glen = strlen(group)) > maxgroup) 848 maxgroup = glen; 849 if (f_flags) { 850 flags = fflagstostr(sp->st_flags); 851 if (flags != NULL && *flags == '\0') { 852 free(flags); 853 flags = strdup("-"); 854 } 855 if (flags == NULL) 856 err(1, "fflagstostr"); 857 flen = strlen(flags); 858 if (flen > (size_t)maxflags) 859 maxflags = flen; 860 } else 861 flen = 0; 862 labelstr = NULL; 863 if (f_label) { 864 char name[PATH_MAX + 1]; 865 mac_t label; 866 int error; 867 868 error = mac_prepare_file_label(&label); 869 if (error == -1) { 870 warn("MAC label for %s/%s", 871 cur->fts_parent->fts_path, 872 cur->fts_name); 873 goto label_out; 874 } 875 876 if (cur->fts_level == FTS_ROOTLEVEL) 877 snprintf(name, sizeof(name), 878 "%s", cur->fts_name); 879 else 880 snprintf(name, sizeof(name), 881 "%s/%s", cur->fts_parent-> 882 fts_accpath, cur->fts_name); 883 884 if (options & FTS_LOGICAL) 885 error = mac_get_file(name, 886 label); 887 else 888 error = mac_get_link(name, 889 label); 890 if (error == -1) { 891 warn("MAC label for %s/%s", 892 cur->fts_parent->fts_path, 893 cur->fts_name); 894 mac_free(label); 895 goto label_out; 896 } 897 898 error = mac_to_text(label, 899 &labelstr); 900 if (error == -1) { 901 warn("MAC label for %s/%s", 902 cur->fts_parent->fts_path, 903 cur->fts_name); 904 mac_free(label); 905 goto label_out; 906 } 907 mac_free(label); 908 label_out: 909 if (labelstr == NULL) 910 labelstr = strdup("-"); 911 labelstrlen = strlen(labelstr); 912 if (labelstrlen > maxlabelstr) 913 maxlabelstr = labelstrlen; 914 } else 915 labelstrlen = 0; 916 917 if ((np = malloc(sizeof(NAMES) + labelstrlen + 918 ulen + glen + flen + 4)) == NULL) 919 err(1, "malloc"); 920 921 np->user = &np->data[0]; 922 (void)strcpy(np->user, user); 923 np->group = &np->data[ulen + 1]; 924 (void)strcpy(np->group, group); 925 926 if (S_ISCHR(sp->st_mode) || 927 S_ISBLK(sp->st_mode)) { 928 sizelen = snprintf(NULL, 0, 929 "%#jx", (uintmax_t)sp->st_rdev); 930 if (d.s_size < sizelen) 931 d.s_size = sizelen; 932 } 933 934 if (f_flags) { 935 np->flags = &np->data[ulen + glen + 2]; 936 (void)strcpy(np->flags, flags); 937 free(flags); 938 } 939 if (f_label) { 940 np->label = &np->data[ulen + glen + 2 941 + (f_flags ? flen + 1 : 0)]; 942 (void)strcpy(np->label, labelstr); 943 free(labelstr); 944 } 945 cur->fts_pointer = np; 946 } 947 } 948 ++entries; 949 } 950 951 /* 952 * If there are no entries to display, we normally stop right 953 * here. However, we must continue if we have to display the 954 * total block count. In this case, we display the total only 955 * on the second (p != NULL) pass. 956 */ 957 if (!entries && (!(f_longform || f_size) || p == NULL)) 958 return; 959 960 d.list = list; 961 d.entries = entries; 962 d.maxlen = maxlen; 963 if (needstats) { 964 d.btotal = btotal; 965 d.s_block = snprintf(NULL, 0, "%lu", howmany(maxblock, blocksize)); 966 d.s_flags = maxflags; 967 d.s_label = maxlabelstr; 968 d.s_group = maxgroup; 969 d.s_inode = snprintf(NULL, 0, "%ju", maxinode); 970 d.s_nlink = snprintf(NULL, 0, "%lu", maxnlink); 971 sizelen = f_humanval ? HUMANVALSTR_LEN : 972 snprintf(NULL, 0, "%ju", maxsize); 973 if (d.s_size < sizelen) 974 d.s_size = sizelen; 975 d.s_user = maxuser; 976 } 977 if (f_thousands) /* make space for commas */ 978 d.s_size += (d.s_size - 1) / 3; 979 printfcn(&d); 980 output = 1; 981 982 if (f_longform) 983 for (cur = list; cur; cur = cur->fts_link) 984 free(cur->fts_pointer); 985 } 986 987 /* 988 * Ordering for mastercmp: 989 * If ordering the argv (fts_level = FTS_ROOTLEVEL) return non-directories 990 * as larger than directories. Within either group, use the sort function. 991 * All other levels use the sort function. Error entries remain unsorted. 992 */ 993 static int 994 mastercmp(const FTSENT * const *a, const FTSENT * const *b) 995 { 996 int a_info, b_info; 997 998 a_info = (*a)->fts_info; 999 if (a_info == FTS_ERR) 1000 return (0); 1001 b_info = (*b)->fts_info; 1002 if (b_info == FTS_ERR) 1003 return (0); 1004 1005 if (a_info == FTS_NS || b_info == FTS_NS) 1006 return (namecmp(*a, *b)); 1007 1008 if (a_info != b_info && 1009 (*a)->fts_level == FTS_ROOTLEVEL && !f_listdir) { 1010 if (a_info == FTS_D) 1011 return (1); 1012 if (b_info == FTS_D) 1013 return (-1); 1014 } 1015 return (sortfcn(*a, *b)); 1016 } 1017